Journal
SEPARATION AND PURIFICATION TECHNOLOGY
Volume 174, Issue -, Pages 282-289Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.seppur.2016.11.013
Keywords
CDs; ZnIn2S4; Noble-metal-free; Co-catalyst; Photocatalysis
Categories
Funding
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- National Basic Research Program of China (973 Program) [2012CB825803, 2013CB932702]
- National Natural Science Foundation of China [51422207, 51132006, 51572179, 21471106, 21501126]
- Specialized Research Fund for the Doctoral Program of Higher Education [20123201110018]
- Natural Science Foundation of Jiangsu Province of China [BK20140310, BK20141305]
- China Postdoctoral Science Foundation [2014M560445, 2015T80581]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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To design highly-effective photocatalysts including various fascinating properties of eco-friendly, visible light response and good durability has been strongly desired in photocatalysis field. Here, we synthetised a series of different proportions of carbon dots (CDs) as an ideal cocatalyst to enhance the photocatalytic activity of ZnIn2S4 microspheres in the range of visible light. Simultaneously, CDs(5)/ZnIn2S4 hybrid photocatalyst exhibits the highest photocatalytic activity for degradating methyl orange (MO) (10 mg/L; 100% degradation within 40 min), which is 2.34 times higher than that of ZnIn2S4 alone. Additionally, the crystalline phases, structure, specific surface area and optical properties of as-prepared samples were characterized. The mechanism of enhanced photocatalytic activity of CDs/ZnIn2S4 composite was also discussed. (C) 2016 Elsevier B.V. All rights reserved.
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